HP ProDesk 400 G2 Small Form Factor Page 61 Maintenance And Service Manual Download

Page: 61 / 148

Speaker

The speaker is attached to the front of the chassis under the rotating drive cage.

Prepare the computer for disassembly (

Preparation for disassembly on page 19

Remove the access panel (

Access panel on page 20

Remove the front bezel (

Front bezel on page 21

Rotate the drive cage to its upright position.

Lift the metal clip

(1)

that secures the speaker cable, and then disconnect the speaker wire from the

white system board connector labeled SPKR

(2)

From the outside, front of the chassis, remove the two Torx screws that secure the speaker to the
chassis.

Speaker

Summary of Contents for ProDesk 400 G2 Small Form Factor

Page 1: ...Maintenance and Service Guide HP ProDesk 400 G2 Small Form Factor ...

Page 2: ...nt may be photocopied reproduced or translated to another language without the prior written consent of Hewlett Packard Company First Edition December 2014 Document Part Number 796112 001 Product notice This guide describes features that are common to most models Some features may not be available on your computer Not all features are available in all editions of Windows 8 Your computer may requir...

Page 3: ...ollow directions could result in bodily harm or loss of life CAUTION Text set off in this manner indicates that failure to follow directions could result in damage to equipment or loss of information NOTE Text set off in this manner provides important supplemental information iii ...

Page 4: ...iv About This Book ...

Page 5: ...erating static 12 Preventing electrostatic damage to equipment 12 Personal grounding methods and equipment 12 Grounding the work area 13 Recommended materials and equipment 13 Operating guidelines 14 Routine care 14 General cleaning safety precautions 14 Cleaning the Computer Case 14 Cleaning the keyboard 15 Cleaning the monitor 15 Cleaning the mouse 15 Service considerations 16 Power supply fan 1...

Page 6: ...34 Removing a 3 5 inch device 34 Installing a 3 5 inch device 35 Removing a slim optical drive 38 Installing a slim optical drive 39 Removing and replacing a 3 5 inch hard drive 40 Removing a 2 5 inch hard drive 43 Installing a 2 5 inch hard drive 43 Power supply 45 Fan duct 47 Front I O assembly 48 Power switch assembly 51 Speaker 53 Fan sink 55 Processor 57 System board 59 Changing from desktop ...

Page 7: ...oblems 91 Solving Network Problems 93 Solving memory problems 97 Solving processor problems 98 Solving CD ROM and DVD problems 99 Solving USB flash drive problems 101 Solving front panel component problems 101 Solving Internet access problems 102 Solving software problems 103 7 POST error messages 105 POST numeric codes and text messages 105 Interpreting POST diagnostic front panel LEDs and audibl...

Page 8: ... Manager select models only 123 Creating recovery discs with HP Recovery Disc Creator select models only 124 Creating recovery discs 124 Backing up your information 125 System Restore 125 System Recovery 126 System Recovery when Windows is responding 126 System Recovery when Windows is not responding 127 System Recovery using recovery media select models only 127 Using HP Recovery Disc operating s...

Page 9: ...ng on the model For a complete listing of the hardware and software installed in the computer run the diagnostic utility included on some computer models only NOTE This computer model can be used in a tower orientation or a desktop orientation Standard configuration features 1 ...

Page 10: ...lack 6 Dual State Power Button 3 USB 3 0 Ports blue 7 Hard Drive Activity Light 4 Microphone Connector 8 3 5 inch Media Card Reader optional NOTE The Power On Light is normally white when the power is on If it is flashing red there is a problem with the computer and it is displaying a diagnostic code Refer to the Maintenance and Service Guide to interpret the code 2 Chapter 1 Product features ...

Page 11: ...ices green NOTE An optional second serial port and an optional parallel port are available from HP When a graphics card is installed in one of the system board slots the video connectors on the graphics card and the integrated graphics on the system board may be used at the same time However for such a configuration only the display connected to the discrete graphics card will display POST message...

Page 12: ...ach computer has a unique serial number and a product ID number that are located on the exterior of the computer Keep these numbers available for use when contacting customer service for assistance 4 Chapter 1 Product features ...

Page 13: ...parts catalog Computer major components This chapter provides part information for all chassis Item Description 1 Front bezel 2 Access panel 3 Power supply 240W 85 efficient 240W standard Computer major components 5 ...

Page 14: ...5 4690s 3 2 GHz 6 MB L3 cache 65W Intel Core i5 4670 3 4 GHz 6 MB L3 cache 84W Intel Core i5 4670s 3 1 GHz 6 MB L3 cache 65W Intel Core i5 4590 3 3 GHz 6 MB L3 cache 84W Intel Core i5 4590s 3 0 GHz 6 MB L3 cache 65W Intel Core i5 4570 3 2 GHz 6 MB L3 cache 84W Intel Core i5 4570s 2 9 GHz 6 MB L3 cache 65W Intel Core i5 4430 3 0 GHz 6 MB L3 cache 84W Intel Core i5 4430s 2 7 GHz 6 MB L3 cache 65W In...

Page 15: ...L3 cache 54W Intel Celeron G1850 2 9 GHz 2 MB L3 cache Intel Celeron G1840 2 8 GHz 2 MB L3 cache Cables Item Description 1 Front I O assembly 2 Power switch assembly SATA drive power cable SATA data cable 19 5 inch 2 straight ends SATA data cable 14 0 inch 1 straight end 1 right angle DMS 59 to dual VGA cable DMS 59 to dual DVI cable Adapter DisplayPort to VGA Adapter DisplayPort to DVI Adapter Di...

Page 16: ...t PCI card Card reader 14 in 1 USB 3 0 3 5 inch Card reader 15 in 1 USB 3 0 3 5 inch UHS II Adapter USB 3 0 to 2 0 Optical drive bezel blank Grommet hard drive HP Ultraslim Keyed Cable Lock Clamp lock universal cable without plate Chassis stand Hard drive carrier 2 5 inch to 3 5 inch WLAN antennas 8 Chapter 2 Illustrated parts catalog ...

Page 17: ...ountries except for Brazil Washable HP USB Antimicrobial Drives Description Hard drive 2 TB 7200 rpm 3 5 inch 1 TB 10000 rpm 1 TB 7200 rpm 3 5 inch 1 TB hard drive hybrid SSD 500 GB 10000 rpm 500 GB 7200 rpm 2 5 inch 500 GB 7200 rpm 2 5 inch self encrypting SED 500 GB 5400 rpm 2 5 inch FIPS 500 GB hard drive hybrid SSD 256 GB Solid state Drive SSD self encrypting SED 256 GB Solid state Drive SSD 1...

Page 18: ...tallation Misc boards Description Nvidia NVS310 PCIe x16 graphics card 512 MB Nvidia NVS315 PCIe x16 graphics card 1 GB AMD Radeon HD8490 DP PCIe x16 graphics card 1 GB AMD Radeon HD8450 PCIe x16 graphics card 1 GB AMD Radeon HD8350 DH PCIe x16 graphics card 1 GB DDR3 Intel PRO 1000 single port GbE NIC includes bracket Intel 802 11 a b g n Bluetooth 4 0 Wireless NIC Intel Dual Band Wireless N 7260...

Page 19: ...arge information A sudden discharge of static electricity from your finger or other conductor can destroy static sensitive devices or microcircuitry Often the spark is neither felt nor heard but damage occurs An electronic device exposed to electrostatic discharge ESD may not appear to be affected at all and can work perfectly throughout a normal cycle The device may function normally for a while ...

Page 20: ...s are necessary to prevent damage to electric components and accessories To avoid hand contact transport products in static safe containers such as tubes bags or boxes Protect all electrostatic parts and assemblies with conductive or approved containers or packaging Keep electrostatic sensitive parts in their containers until they arrive at static free stations Place items on a grounded surface be...

Page 21: ... work areas Turn off power and input signals before inserting and removing connectors or test equipment Use fixtures made of static safe materials when fixtures must directly contact dissipative surfaces Keep work area free of nonconductive materials such as ordinary plastic assembly aids and Styrofoam Use field service tools such as cutters screwdrivers and vacuums that are conductive Recommended...

Page 22: ...ject to each other s re circulated or preheated air If the computer is to be operated within a separate enclosure intake and exhaust ventilation must be provided on the enclosure and the same operating guidelines listed above will still apply Keep liquids away from the computer and keyboard Never cover the ventilation slots on the monitor with any type of material Install or enable power managemen...

Page 23: ... Caution should be used as too much air pressure can dislodge lubricants applied under the wide keys If you remove a key use a specially designed key puller to prevent damage to the keys This tool is available through many electronic supply outlets CAUTION Never remove a wide leveled key like the space bar from the keyboard If these keys are improperly removed or installed the keyboard may not fun...

Page 24: ...fferent lengths If an incorrect screw is used during the reassembly process it can damage the unit HP strongly recommends that all screws removed during disassembly be kept with the part that was removed then returned to their proper locations CAUTION Metric screws have a black finish U S screws have a silver finish and are used on hard drives only CAUTION As each subassembly is removed from the c...

Page 25: ...battery The battery that comes with the computer provides power to the real time clock and has a minimum lifetime of about three years See the appropriate removal and replacement chapter for the chassis you are working on in this guide for instructions on the replacement procedures WARNING This computer contains a lithium battery There is a risk of fire and chemical burn if the battery is handled ...

Page 26: ...etermines that a failure is imminent it generates a fault alert Cable management Always follow good cable management practices when working inside the computer Keep cables away from major heat sources like the heat sink Do not jam cables on top of expansion cards or memory modules Printed circuit cards like these are not designed to take excessive pressure on them Keep cables clear of sliding or m...

Page 27: ...r USB flash drives from the computer 3 Turn off the computer properly through the operating system then turn off any external devices 4 Disconnect the power cord from the power outlet and disconnect any external devices CAUTION Turn off the computer before disconnecting any cables Regardless of the power on state voltage is always present on the system board as long as the system is plugged into a...

Page 28: ... for disassembly on page 19 2 Loosen the thumbscrew on the rear of the computer 1 then slide the panel back 2 and lift if off the computer 3 To install the access panel reverse the removal procedure 20 Chapter 4 Removal and replacement procedures Small Form Factor ...

Page 29: ...Preparation for disassembly on page 19 2 Remove the access panel Access panel on page 20 3 Lift up the three tabs on the side of the bezel 1 then rotate the bezel off the chassis 2 To install the front bezel reverse the removal procedure Front bezel 21 ...

Page 30: ...or disassembly Preparation for disassembly on page 19 2 Remove the access panel Access panel on page 20 3 Remove one of the five silver 6 32 standard screws located on top of the drive cage 4 Install the security screw through the middle front bezel release tab to secure the front bezel in place 22 Chapter 4 Removal and replacement procedures Small Form Factor ...

Page 31: ...el blank press inward on the five retaining tabs 1 and pull the blank off the front bezel 2 To remove a 3 5 inch bezel blank press the two retaining tabs that hold the bezel blank in place towards the outer right edge of the bezel 3 and slide the bezel blank back and to the right to remove it 4 NOTE After removing the slim optical drive bezel blank and installing a slim optical drive you can insta...

Page 32: ... channel mode DDR3 SDRAM DIMMs For proper system operation the DDR3 SDRAM DIMMs must be industry standard 240 pin unbuffered non ECC PC3 12800 DDR3 1600 MHz compliant 1 35 volt or 1 5 volt DDR3 DDR3L SDRAM DIMMs The DDR3 SDRAM DIMMs must also support CAS latency 11 DDR3 1600 MHz 11 11 11 timing contain the mandatory JEDEC SPD information In addition the computer supports 512 Mbit 1 Gbit and 2 Gbit...

Page 33: ...d to Channel A In any mode the maximum operational speed is determined by the slowest DIMM in the system Installing DIMMs CAUTION You must disconnect the power cord and wait approximately 30 seconds for the power to drain before adding or removing memory modules Regardless of the power on state voltage is always supplied to the memory modules as long as the computer is plugged into an active AC ou...

Page 34: ...t the memory capacity is spread as equally as possible between Channel A and Channel B 5 Push the module down into the socket ensuring that the module is fully inserted and properly seated Make sure the latches are in the closed position 3 6 Repeat steps 4 and 5 to install any additional modules The computer should automatically recognize the additional memory the next time you turn on the compute...

Page 35: ...s You can install a PCI Express x1 x4 x8 or x16 expansion card in the PCI Express x16 slot For dual graphics card configurations the first primary card must be installed in the PCI Express x16 slot To remove replace or add an expansion card 1 Prepare the computer for disassembly Preparation for disassembly on page 19 2 Remove the access panel Access panel on page 20 3 Locate the correct vacant exp...

Page 36: ... straight up then away from the inside of the chassis b If you are removing a PCI Express x1 card hold the card at each end and carefully rock it back and forth until the connectors pull free from the socket Pull the expansion card straight up from the socket 1 then away from the inside of the chassis to release it from the chassis frame 2 Be sure not to scrape the card against the other component...

Page 37: ...hen away from the inside of the chassis to release it from the chassis frame Be sure not to scrape the card against the other components 6 Store the removed card in anti static packaging 7 If you are not installing a new expansion card install an expansion slot cover to close the open slot CAUTION After removing an expansion card you must replace it with a new card or expansion slot cover for prop...

Page 38: ...an expansion card press firmly on the card so that the whole connector seats properly in the expansion card slot 9 Rotate the slot cover retention latch back in place to secure the expansion card 10 Connect external cables to the installed card if needed Connect internal cables to the system board if needed 11 Reconfigure the computer if necessary System board connections Refer to the following il...

Page 39: ...d 5 Parallel Port PAR black Optional Parallel Port 6 Serial Port COMB black Optional Second Serial Port 7 Battery BAT black Memory Module 8 DIMM3 Channel A DIMM3 black Memory Module 9 DIMM1 Channel B DIMM1 black Memory Module 10 SATA 3 0 SATA0 dark blue Primary Hard Drive 11 SATA 3 0 SATA1 light blue Secondary Hard Drive 12 SATA 2 0 SATA5 white Optical Drive 13 USB 2 0 MEDIA black USB 2 0 Device s...

Page 40: ...w these guidelines The primary Serial ATA SATA hard drive must be connected to the dark blue primary SATA connector on the system board labeled SATA0 Connect a secondary hard drive to the light blue SATA connector on the system board labeled SATA1 Connect an optical drive to the white SATA connector on the system board labeled SATA5 Connect a media card reader USB 3 0 cable with a USB 3 0 to USB 2...

Page 41: ...urity 1 see Front bezel security on page 22 for more information The other four are used as guide screws for a media card reader or a secondary hard drive in the 3 5 inch optional drive bay 2 CAUTION To prevent loss of work and damage to the computer or drive If you are inserting or removing a drive shut down the operating system properly turn off the computer and unplug the power cord Do not remo...

Page 42: ...e and size of the storage devices installed in the computer run Computer Setup Removing a 3 5 inch device CAUTION All removable media should be taken out of a drive before removing the drive from the computer 1 Prepare the computer for disassembly Preparation for disassembly on page 19 2 Remove the access panel Access panel on page 20 3 Remove the front bezel Front bezel on page 21 4 Rotate the dr...

Page 43: ...the rear of the device 1 and slide the device out of the rear of the drive bay 2 Installing a 3 5 inch device 1 Prepare the computer for disassembly Preparation for disassembly on page 19 2 Remove the access panel Access panel on page 20 3 Remove the front bezel Front bezel on page 21 If you are installing a drive in a bay covered by a bezel blank remove the bezel blank See Bezel blanks on page 23...

Page 44: ...s on top of the drive cage Refer to Drives on page 32 for an illustration of the extra guide screws location When replacing a device transfer the four 6 32 guide screws from the old device to the new one 5 Rotate the drive cage to its upright position 36 Chapter 4 Removal and replacement procedures Small Form Factor ...

Page 45: ...3 0 to USB 2 0 adapter and connect the adapter cable from the media card reader to the USB 2 0 connector on the system board labeled MEDIA NOTE Refer to System board connections on page 30 for an illustration of the system board drive connectors 8 Rotate the drive cage back down to its normal position CAUTION Be careful not to pinch any cables or wires when rotating the drive cage down Drives 37 ...

Page 46: ...panel on page 20 3 Disconnect the power and data cables 1 from the rear of the optical drive push the green release latch on the right rear side of the drive toward the center of the drive 2 then slide the drive forward and out of the bay through the front bezel 3 CAUTION When removing the cables pull the tab or connector instead of the cable itself to avoid damaging the cable 38 Chapter 4 Removal...

Page 47: ... more information 5 Before the new optical drive can be used the release latch must be attached a Peel the backing off the adhesive on the release latch b Without allowing the release latch to touch the optical drive carefully align the holes on the release latch with the pins on the side of the optical drive Make sure the release latch is oriented properly c Insert the pin at the front of the opt...

Page 48: ...ounds the front of the optical drive is available from HP Install the bezel trim piece in the front bezel before installing the front bezel Removing and replacing a 3 5 inch hard drive NOTE Before you remove the old hard drive be sure to back up the data from the old hard drive so that you can transfer the data to the new hard drive 1 Prepare the computer for disassembly Preparation for disassembl...

Page 49: ...1 While pulling the release lever out slide the drive back until it stops then lift the drive up and out of the bay 2 6 To install a hard drive you must transfer the silver and blue isolation mounting guide screws from the old hard drive to the new hard drive Drives 41 ...

Page 50: ...data cable for the primary hard drive must be connected to the dark blue connector labeled SATA0 on the system board to avoid any hard drive performance problems 9 Replace the access panel 10 If the computer was on a stand replace the stand 11 Reconnect the power cord and turn on the computer 12 Lock any security devices that were disengaged when the access panel was removed 42 Chapter 4 Removal a...

Page 51: ...le and data cable from the back of the hard drive 5 Pull outward on the release lever at the rear of the drive 1 then slide the drive back until it stops and pull it down and out of the drive bay 2 Installing a 2 5 inch hard drive 1 Prepare the computer for disassembly Preparation for disassembly on page 19 2 If the computer is on a stand remove the computer from the stand 3 Remove the access pane...

Page 52: ...ess the drive up into the drive bay then slide it forward until it locks in place 7 Connect the power cable and data cable to the back of the hard drive NOTE If the 2 5 inch hard drive is the primary drive connect the data cable to the dark blue SATA connector labeled SATA0 on the system board If it is a secondary drive connect the data cable to one of the light blue SATA connectors on the system ...

Page 53: ...he chassis WARNING Voltage is always present on the system board when the computer is plugged into an active AC outlet To avoid possible personal injury and damage to the equipment the power cord should be disconnected from the computer and or the AC outlet before opening the computer 1 Prepare the computer for disassembly Preparation for disassembly on page 19 2 Remove the access panel Access pan...

Page 54: ...e release button at the front of the power supply 1 8 Slide the power supply forward 2 and then lift it out of the chassis 3 To install the power supply reverse the removal procedure CAUTION When installing the power supply cables make sure they are properly positioned in the clip under the drive cage 46 Chapter 4 Removal and replacement procedures Small Form Factor ...

Page 55: ...ation for disassembly on page 19 2 Remove the access panel Access panel on page 20 3 Rotate the fan duct upward 4 Pull the duct away from the chassis to disengage the clips on the duct from the chassis To install the fan duct insert the clips on the edge of the fan onto the metal posts on the chassis Fan duct 47 ...

Page 56: ...l Front bezel on page 21 4 Rotate the drive cage to its upright position 5 Cut the plastic tie that secures the longer cable to the power supply 6 Disconnect the cables from the system board as follows Yellow connector labeled FRONT USB Blue connector labeled FRONT USB 3 0 Blue connector labeled FRONT AUD 48 Chapter 4 Removal and replacement procedures Small Form Factor ...

Page 57: ...7 Remove the cables from the cable clips under the drive cage 8 Remove the Torx T15 screw 1 that secures the assembly to the front of the chassis Front I O assembly 49 ...

Page 58: ...e inside of the chassis and then pull the tab on the left side of the assembly out the front of the chassis Push the right side until it clicks into place NOTE Be sure to correctly route the cables beneath the drive cage when reinstalling the assembly Proper cable routing prevents damage to the cables and allows the drive cage to close properly 50 Chapter 4 Removal and replacement procedures Small...

Page 59: ...2 Remove the access panel Access panel on page 20 3 Remove the front bezel Front bezel on page 21 4 Rotate the drive cage to its upright position 5 Disconnect the cable from the system board connector labeled PB LED 6 Remove the cable from the cable clips under the drive cage Power switch assembly 51 ...

Page 60: ...itch assembly first insert the cable through the hole from the front of the chassis After inserting the cable place the bottom of the assembly into the slot and then rotate the top up until it snaps into place NOTE Be sure to correctly route the cables beneath the drive cage when reinstalling the assembly Proper cable routing prevents damage to the cables and allows the drive cage to close properl...

Page 61: ... panel Access panel on page 20 3 Remove the front bezel Front bezel on page 21 4 Rotate the drive cage to its upright position 5 Lift the metal clip 1 that secures the speaker cable and then disconnect the speaker wire from the white system board connector labeled SPKR 2 6 From the outside front of the chassis remove the two Torx screws that secure the speaker to the chassis Speaker 53 ...

Page 62: ...7 Lift the speaker from the inside of the chassis to remove it To install the speaker reverse the removal procedures 54 Chapter 4 Removal and replacement procedures Small Form Factor ...

Page 63: ... Access panel on page 20 3 Remove the fan duct Fan duct on page 47 4 Loosen the four captive Torx T15 screws that secure the fan sink to the system board tray CAUTION Remove fan sink retaining screws in diagonally opposite pairs as in an X to even the downward forces on the processor This is especially important as the pins on the socket are very fragile and any damage to them may require replacin...

Page 64: ...resh thermal grease has been applied to the top of the processor CAUTION Fan sink retaining screws should be tightened in diagonally opposite pairs as in an X to evenly seat the fan sink on the processor to avoid damage that could require replacing the system board Make sure to replace the fan duct Failure to install the fan duct may cause the computer to overheat 56 Chapter 4 Removal and replacem...

Page 65: ...re i5 4430 3 0 GHz 6 MB L3 cache 84W Intel Core i5 4430s 2 7 GHz 6 MB L3 cache 65W Intel Core i3 4370 3 8 GHz 4 MB L3 cache 54W Intel Core i3 4360 3 7 GHz 4 MB L3 cache 54W Intel Core i3 4350 3 6 GHz 4 MB L3 cache 54W Intel Core i3 4340 3 6 GHz 4 MB L3 cache 54W Intel Core i3 4330 3 5 GHz 4 MB L3 cache 54W Intel Core i3 4160 3 6 GHz 4 MB L3 cache 54W Intel Core i3 4150 3 5 GHz 4 MB L3 cache 54W In...

Page 66: ...om the socket 3 CAUTION Do NOT handle the pins in the processor socket These pins are very fragile and handling them could cause irreparable damage Once pins are damaged it may be necessary to replace the system board The heat sink must be installed within 24 hours of installing the processor to prevent damage to the processor s solder connections NOTE After installing a new processor onto the sys...

Page 67: ... page 20 3 When replacing the system board make sure the following components are removed from the defective system board and installed on the replacement system board Memory modules Memory on page 24 Expansion cards Expansion card on page 27 Fan sink Fan sink on page 55 Processor Processor on page 57 4 Remove the fan duct from the chassis Fan duct on page 47 5 Rotate the drive cage to its upright...

Page 68: ...hat can be purchased from HP 1 Prepare the computer for disassembly Preparation for disassembly on page 19 2 Orient the computer so that its right side is facing down and place the computer in the optional stand NOTE To stabilize the computer in a tower orientation HP recommends the use of the optional tower stand 3 Reconnect the power cord and any external devices then turn on the computer NOTE E...

Page 69: ...ess of the mode selected To manually switch to Post Messages Enabled during POST press any key except F1 through F12 Establish an Ownership Tag the text of which is displayed each time the system is turned on or restarted Enter the Asset Tag or property identification number assigned by the company to this computer Enable the power on password prompt during system restarts warm boots as well as du...

Page 70: ...Storage Security Power and Advanced 4 Use the arrow left and right keys to select the appropriate heading Use the arrow up and down keys to select the option you want then press Enter To return to the Computer Setup Utilities menu press Esc 5 To apply and save changes select File Save Changes and Exit If you have made changes that you do not want applied select Ignore Changes and Exit To reset to ...

Page 71: ...nd date Flash System ROM Allows you to update the system ROM with a BIOS image file located on removable media Replicated Setup Save to Removable Media Saves system configuration to a formatted USB flash media device Restore from Removable Media Restores system configuration from a USB flash media device Default Setup Save Current Settings as Default Saves the current system configuration settings...

Page 72: ...D AHCI device driver must be installed prior to attempting to boot from a RAID AHCI volume If you attempt to boot from a RAID AHCI volume without the required device driver installed the system will crash blue screen RAID volumes may become corrupted if they are booted to after disabling RAID Removable Media Boot Enables disables ability to boot the system from removable media Default is enabled B...

Page 73: ... set Allows you to enable disable Lock Legacy Resources determines whether or not Windows Device Manager is allowed to change resource settings for serial and parallel ports Stringent security enabling the stringent password disables the ability to reset the password by moving the jumper on the system board Default is disabled CAUTION If you enable the stringent security feature and you forget the...

Page 74: ... serial number is invalid These ID numbers are normally set in the factory and are used to uniquely identify the system Keyboard locale setting for System ID entry Master Boot Record Security Enables disables Master Boot Record MBR security The MBR contains information needed to successfully boot from a disk and to access the data stored on the disk Master Boot Record Security may prevent unintent...

Page 75: ...rase all security keys and leave the device in a disabled state Changing this setting requires that you restart the computer Default is Do not reset CAUTION The embedded security device is a critical component of many security schemes Erasing the security keys will prevent access to data protected by the Embedded Security Device Choosing Reset to Factory Settings may result in significant data los...

Page 76: ... to modify the contents of the secure boot signature databases and the platform key PK that verifies kernels during system start up allowing you to use alternative operating systems Selecting HP Keys causes the computer boot using the preloaded HP specific boot keys Default is HP Keys Fast Boot Enable Disable Fast boot disables the ability to interrupt boot such as pressing f keys to access items ...

Page 77: ...s Option Heading Power On Options Allows you to set POST mode QuickBoot Clear Memory FullBoot or FullBoot Every x Days QuickBoot default Do not clear memory or perform a memory test FullBoot Memory test count on cold boot Clears memory on all boots Clear Memory No memory count on cold boot Clears memory on all boots FullBoot Every x Days Memory count on 1st cold boot on or after the xth day No mor...

Page 78: ...is installed Default is disabled Device Options Allows you to set Printer mode Bi Directional EPP ECP Output Only ECP Enhanced Capabilities Port EPP Enhanced Parallel Port Default is EPP ECP Num Lock State at Power On off on Default is off Integrated Video enable disable Use this option to disable the integrated video controller when another video controller is present in the system Default is ena...

Page 79: ... necessary system configuration Default is enabled Unconfigure AMT ME enable disable Allows you to unconfigure any provisioned management settings for AMT The AMT settings are restored to factory defaults This feature should be used with caution as AMT will not be able to provide any set AMT management functions once unconfigured Default is disabled Hide Unconfigure ME Confirmation Prompt enable d...

Page 80: ... lights are error codes that will help you diagnose the problem Refer to Appendix A POST error messages on page 105 for more information If the screen is blank plug the monitor into a different video port on the computer if one is available Or replace the monitor with a monitor that you know is functioning properly If you are working on a network plug another computer with a different cable into t...

Page 81: ...hat the monitor is turned on and the green monitor light is on Check the Power LED on the front of the computer to see if it is flashing red The flashing lights are error codes that will help you diagnose the problem Refer to Appendix A POST error messages on page 105 for more information Turn up the brightness and contrast controls of the monitor if the monitor is dim Press and hold any key If th...

Page 82: ...rd To reduce the risk of personal injury from electrical shock and or hot surfaces be sure to disconnect the power cord from the wall outlet and allow the internal system components to cool before touching Computer appears locked up and will not turn off when the power button is pressed Cause Solution Software control of the power switch is not functional 1 Press and hold the power button for at l...

Page 83: ...peakers 2 Make sure the external speakers are properly connected and powered on and that the speakers volume control is set correctly 3 Use the system volume control available in the operating system to make sure the speakers are not muted or to increase the volume Cannot remove computer cover or access panel Cause Solution Smart Cover Lock featured on some computers is locked Unlock the Smart Cov...

Page 84: ...to Start All Programs Accessories Run b Type msconfig and then press Enter c On the Startup tab of the System Configuration Utility clear applications that you do not want to launch automatically and the click OK In Windows 8 a On the Start screen right click and then select the All apps icon b Under Windows System click Run c Type msconfig and then press Enter d On the Startup tab of the System C...

Page 85: ...r on Press and hold the power button for less than 4 seconds If the hard drive LED turns white then 1 If equipped with a voltage selector check that the voltage selector located on the rear of the power supply is set to the appropriate voltage Proper voltage setting depends on your region 2 Remove the expansion cards one at a time until the 5V_aux light on the system board turns on 3 Replace the s...

Page 86: ...ystem fan spins If the fan does not spin make sure the fan cable is plugged onto the system board header 3 If fan a plugged in and not spinning replace it Power LED flashes Red four times once every second followed by a two second pause and the computer beeps four times Beeps stop after fifth iteration but LEDs continue flashing Cause Solution Power failure power supply is overloaded 1 If equipped...

Page 87: ...the list of applications In the left column expand Computer right click on a drive select Properties and then select the Tools tab Under Error checking click Check Drive not found identified Cause Solution Cable could be loose Check cable connections The system may not have automatically recognized a newly installed device See reconfiguration directions in the Solving Hardware Installation Problem...

Page 88: ... Drive entry Computer will not boot from hard drive Cause Solution The device is attached to a SATA port that has been hidden in Computer Setup 1 Check SATA cable connections 2 Run the Computer Setup utility and ensure Device Available is selected for the device s SATA port in Security Device Security Boot order is not correct Run the Computer Setup utility and change boot sequence in Storage Boot...

Page 89: ...our card to see if it writable Refer to the previous section for a list of compatible cards Media card is locked Locking the media card is a safety feature that prevents writing to and deleting from an SD Memory Stick PRO card If using an SD card make sure that the lock tab located on the right of the SD card is not in the locked position If using a Memory Stick PRO card make sure that the lock ta...

Page 90: ...display problems see the documentation that came with the monitor and to the common causes and solutions listed in the following table Blank screen no video Cause Solution Monitor is not turned on and the monitor light is not on Turn on the monitor and check that the monitor light is on Bad monitor Try a different monitor The cable connections are not correct Check the cable connection from the mo...

Page 91: ...to select the input that is being driven by the system Refer to the monitor s user documentation for more information on the on screen controls and settings Blank screen and the power LED flashes Red five times once every second followed by a two second pause and the computer beeps five times Beeps stop after fifth iteration but LEDs continue flashing Cause Solution Pre video memory error 1 Reseat...

Page 92: ...onnector and the monitor Blurry video or requested resolution cannot be set Cause Solution If the graphics controller was upgraded the correct graphics drivers may not be loaded Install the video drivers included in the upgrade kit Monitor is not capable of displaying requested resolution Change requested resolution Graphics card is bad Replace the graphics card The picture is broken up rolls jitt...

Page 93: ...the F8 key as your computer restarts before the Windows logo appears If the Windows logo appears you must restart the computer and try again 3 On the Advanced Boot Options screen use the arrow keys to highlight the safe mode option you want and then press Enter 4 Log on to your computer with a user account that has administrator rights When your computer is in safe mode Safe Mode displays in the c...

Page 94: ...ate monitor and download either SP32347 or SP32202 http www hp com support Graphics card is not seated properly or is bad some models 1 Reseat the graphics card 2 Replace the graphics card Certain typed symbols do not appear correct Cause Solution The font you are using does not support that particular symbol Use the Character Map to locate and select the appropriate symbol You can copy the symbol...

Page 95: ...ate CAUTION When attempting to resume from Sleep state do not hold down the power button for more than four seconds Otherwise the computer will shut down and you will lose any unsaved data Internal speaker is disabled in Computer Setup Enable the internal speaker in Computer Setup Select Advanced Device Options Internal Speaker The application is set to use a different audio device than speakers S...

Page 96: ...creen type c select Control Panel from the list of applications and then select Device Manager Some applications can select which audio output device is used Make sure the application has selected the correct audio device The operating system controls may be set to use a different audio device as the default output device than what is expected Set the operating system to use the correct audio devi...

Page 97: ... on Printer will not print Cause Solution The printer may be out of paper Check the paper tray and refill it if it is empty Solving keyboard and mouse problems If you encounter keyboard or mouse problems see the documentation that came with the equipment and to the common causes and solutions listed in the following table A wireless keyboard mouse is not working correctly Symptoms include lagging ...

Page 98: ... or enable the Num Lock key in Computer Setup at Advanced Device Options Mouse does not respond to movement or is too slow Cause Solution Mouse connector is not properly plugged into the back of the computer Shut down the computer using the keyboard Windows 7 1 Press the Ctrl and Esc keys at the same time or press the Windows logo key to display the Start menu 2 Use the arrow keys to select Shut D...

Page 99: ...en the computer is plugged into an AC power source voltage is always applied to the system board To reduce the risk of personal injury from electrical shock and or hot surfaces be sure to disconnect the power cord from the wall outlet and allow the internal system components to cool before touching Table 6 1 Solving Hardware Installation Problems A new device is not recognized as part of the syste...

Page 100: ...stallation NOTE DIMM1 or XMM1 must always be installed DIMM1 must be installed before DIMM2 and DIMM3 must be installed before DIMM4 2 Observe the beeps and LED lights on the front of the computer Beeps and flashing LEDs are codes for specific problems 3 If you still cannot resolve the issue contact Customer Support Power LED flashes Red five times once every second followed by a two second pause ...

Page 101: ...and replace bad option card 3 Replace the system board Solving Network Problems Some common causes and solutions for network problems are listed in the following table These guidelines do not discuss the process of debugging the network cabling Table 6 2 Solving Network Problems Wake on LAN feature is not functioning Cause Solution S5 Maximum Power Saving feature is enabled Disable the S5 Maximum ...

Page 102: ...ions and then select Device Manager Incorrect network driver Check the network controller documentation for the correct driver or obtain the latest driver from the manufacturer s Web site Network status link light never flashes NOTE The network status light is supposed to flash when there is network activity Cause Solution No active network is detected Check cabling and network equipment for prope...

Page 103: ...tached to the correct connector There is a problem with the cable or a device at the other end of the cable Ensure that the cable and device at the other end are operating correctly Network controller interrupt is shared with an expansion board Under the Computer Setup Advanced menu change the resource settings for the board The network controller is defective Contact an authorized service provide...

Page 104: ...necessary download the softpaq from the web from a different computer The cable is not securely connected Ensure that the cable is securely attached to the network connector and that the other end of the cable is securely attached to the correct device The network controller is defective Contact an authorized service provider New network card will not boot Cause Solution New network card may be de...

Page 105: ... memory module is not installed in the DIMM1 or XMM1 socket Ensure that a memory module is installed in the DIMM1 or XMM1 socket on the system board This socket must be populated with a memory module Memory module is not the correct type or speed grade for the system or the new memory module is not seated properly Replace module with the correct industry standard device for the computer On some mo...

Page 106: ...mance is experienced Cause Solution Processor is hot 1 Make sure the airflow to the computer is not blocked 2 Make sure the fans are connected and working properly some fans only operate when needed 3 Make sure the processor heat sink is installed properly Power LED flashes Red three times once every second followed by a two second pause Cause Solution Processor is not seated properly or not insta...

Page 107: ...ctions The system may not have automatically recognized a newly installed device See reconfiguration directions in the Solving Hardware Installation Problems on page 91 section If the system still does not recognize the new device check to see if the device is listed within Computer Setup If it is listed the probable cause is a driver problem If it is not listed the probable cause is a hardware pr...

Page 108: ...the type of media played such as audio or video Wait at least 30 seconds to let the DVD ROM drive determine the type of media being played If the disc still does not start read the other solutions listed for this topic CD or DVD disc is dirty Clean CD or DVD with a CD cleaning kit available from most computer stores Windows does not detect the CD ROM or DVD ROM drive 1 Use Device Manager to remove...

Page 109: ... Storage Boot Order Removable Media Boot is disabled in the Computer Setup utility Run the Computer Setup utility and enable booting to removable media in Storage Storage Options Ensure USB is enabled in Storage Boot Order The computer boots to DOS after making a bootable flash drive Cause Solution Flash drive is bootable Install the flash drive only after the operating system boots Flash drive is...

Page 110: ...uld see a power LED light on the front of the cable DSL modem Cable DSL service is not available or has been interrupted due to bad weather Try connecting to the Internet at a later time or contact your ISP If the cable DSL service is connected the cable LED light on the front of the cable DSL modem will be on The CAT5 UTP cable is disconnected Connect the CAT5 UTP cable between the cable modem an...

Page 111: ... ROM issue POST error has occurred Observe the beeps and LED lights on the front of the computer See Appendix A POST error messages on page 105 to determine possible causes See the Worldwide Limited Warranty for terms and conditions Computer will not continue after HP logo screen displays Cause Solution System files may be damaged In Windows 7 use recovery media to scan hard drive for errors or us...

Page 112: ...ct the account to use to begin Automatic Repair and type the password for the account Windows diagnoses the computer and attempts the repair it Illegal Operation has Occurred error message is displayed Cause Solution Software being used is not Microsoft certified for your version of Windows Verify that the software is certified by Microsoft for your version of Windows see program packaging for thi...

Page 113: ... Boot Every x Days mode using Computer Setup NOTE For more information on Computer Setup see Computer Setup F10 Utility on page 61 POST numeric codes and text messages This section covers those POST errors that have numeric codes associated with them The section also includes some text messages that may be encountered during POST NOTE The computer will beep once after a POST text message is displa...

Page 114: ... an authorized dealer or reseller for RTC battery replacement 163 Time Date Not Set CMOS jumper may not be properly installed Check for proper placement of the CMOS jumper if applicable 164 MemorySize Error Memory amount has changed since the last boot memory added or removed Press the F1 key to save the memory changes 164 MemorySize Error Memory configuration incorrect 1 Run Computer Setup or Win...

Page 115: ...er 1 Reseat the graphics card if applicable 2 Clear CMOS See Appendix B Password security and resetting CMOS on page 115 3 Verify monitor is attached and turned on 4 Replace the graphics card if possible 510 Flash Screen Image Corrupted Flash Screen image has errors Reflash the system ROM with the latest BIOS image 511 CPU CPUA or CPUB Fan not Detected CPU fan is not connected or may have malfunct...

Page 116: ...ess 918 Front USB Not Connected Front USB harness has been detached or unseated from motherboard Reconnect or replace front USB harness 921 Device in PCI Express slot failed to initialize There is an incompatibility problem with this device and the system or PCI Express Link could not be retrained to an x1 Try rebooting the system If the error reoccurs the device may not work with this system 1151...

Page 117: ...elect Security Drivelock Security For each listed Drivelock capable SATA device ensure Drivelock is Disabled Lastly change Storage Storage Options SATA Emulation back to RAID and select File Save Changes and Exit 1801 Microcode Patch Error Processor is not supported by ROM BIOS 1 Upgrade BIOS to proper version 2 Change the processor 2200 PMM Allocation Error during MEBx Download Memory error durin...

Page 118: ...st BIOS version 3 If the error still persists replace the system board 2211 Memory not configured correctly for proper MEBx execution DIMM1 or XMM1 is not installed Make sure there is a memory module in the black DIMM1 socket and that it is properly seated 2212 USB Key Provisioning failure writing to device USB device used for USB key provisioning will not allow BIOS to update provision file prope...

Page 119: ...ion which fails into ME grouping 1 Reboot the computer 2 If the error persists update to the latest BIOS version and ME firmware version 3 If the error still persists replace the system board 2232 AMT error during MEBx execution Error occurred during MEBx execution which fails into AMT grouping 1 Reboot the computer 2 If the error persists update to the latest BIOS version and ME firmware version ...

Page 120: ...ded actions in the following table are listed in the order in which they should be performed Not all diagnostic lights and audible codes are available on all models Activity Beeps Possible cause Recommended action White Power LED On None Computer on None White Power LED flashes every two seconds None Computer in Suspend to RAM mode some models only or normal Suspend mode None required Press any ke...

Page 121: ...emory with HP memory 4 Replace the system board Red Power LED flashes six times once every second followed by a two second pause Beeps stop after fifth iteration but LEDs continue until problem is solved 6 Pre video graphics error For systems with a graphics card 1 Reseat the graphics card 2 Replace the graphics card 3 Replace the system board For systems with integrated graphics replace the syste...

Page 122: ...d the power button for less than 4 seconds If the hard drive LED turns white the power button is working correctly Try the following 1 Check that the voltage selector some models located on the rear of the power supply is set to the appropriate voltage Proper voltage setting depends on your region 2 Replace the system board OR Press and hold the power button for less than 4 seconds If the hard dri...

Page 123: ...n the computer by resetting the password jumper CAUTION Pushing the CMOS button will reset CMOS values to factory defaults It is important to back up the computer CMOS settings before resetting them in case they are needed later Back up is easily done through Computer Setup See Computer Setup F10 Utility on page 61 for information on backing up the CMOS settings Resetting the password jumper CAUTI...

Page 124: ...can be easily identified For assistance locating the password jumper and other system board components see the Illustrated Parts Service Map IPSM The IPSM can be downloaded from http www hp com support 5 Remove the jumper from pins 1 and 2 Place the jumper on either pin 1 or 2 but not both so that it does not get lost 6 Replace the computer cover or access panel 7 Reconnect the external equipment ...

Page 125: ... computer cover or access panel CAUTION Pushing the CMOS button will reset CMOS values to factory defaults It is important to back up the computer CMOS settings before resetting them in case they are needed later Back up is easily done through Computer Setup See Computer Setup F10 Utility on page 61 for information on backing up the CMOS settings 4 Locate press and hold the CMOS button in for five...

Page 126: ...ics from one of three places depending on your preference and the health of the computer 1 Turn on the computer and press Esc repeatedly until the BIOS Boot Menu appears 2 Press F2 or select Diagnostics F2 Pressing F2 signals the system to search for the diagnostics in the following locations a A connected USB drive to download the diagnostics tools to a USB drive see the instructions in Downloadi...

Page 127: ...er the product name and then click Go or Click Find Now to let HP automatically detect your product 4 Select your computer model and then select your operating system 5 In the Diagnostic section click HP UEFI Support Environment 6 Click Download and then select Run Downloading HP PC Hardware Diagnostics UEFI to a USB device 119 ...

Page 128: ...been replaced You will use a USB flash drive to create a bootable recovery drive that can be used to troubleshoot a computer that is unable to start The USB flash drive can be used to reinstall the original operating system and the programs that were installed at the factory NOTE Any information on the USB flash drive will be erased before the recovery media is created To create the Windows 8 1 re...

Page 129: ...d the Driver Recovery media purchased separately see Recovery using Windows operating system media purchased separately on page 122 3 If the HP Recovery partition is listed restart the computer and then press esc while the HP logo is displayed The computer Startup Menu displays 4 Press f11 to select the System Recovery option 5 Choose your keyboard layout 6 Select Troubleshoot 7 Select Reset 8 Fol...

Page 130: ...yboard key 4 Follow the on screen instructions After the repair is completed and the Windows desktop appears 1 Remove the Windows operating system media and then insert the Driver Recovery media 2 Install the Hardware Enabling Drivers first and then install Recommended Applications Backing up restoring and recovering in Windows 7 Your computer includes tools provided by HP and Windows to help you ...

Page 131: ...computer create recovery media The media can be used to reinstall the original operating system in cases where the hard drive is corrupted or has been replaced There are two types of recovery media To determine which steps to follow for your computer 1 Click the Start button 2 Click All Programs If Security and Protection is listed continue with the steps in Creating recovery media using HP Recove...

Page 132: ...enough storage capacity it will appear grayed out and you must replace it with a larger USB flash drive Click Next 6 Follow the on screen instructions When the process is complete label the USB flash drive and store it in a secure place Creating recovery discs with HP Recovery Disc Creator select models only HP Recovery Disc Creator is a software program that offers an alternative way to create re...

Page 133: ...t are stored in their associated directories Save customized settings that appear in a window toolbar or menu bar by taking a screen shot of your settings The screen shot can be a time saver if you have to reset your preferences When backing up to discs number each disc after removing it from the drive NOTE For detailed instructions on various backup and restore options perform a search for these ...

Page 134: ...ive The recovery image is a file that contains a copy of the original factory shipped software To perform a System Recovery from a recovery image see System Recovery when Windows is responding on page 126 or System Recovery when Windows is not responding on page 127 Recovery media Run System Recovery from recovery media that you have created from files stored on your hard disk drive or purchased s...

Page 135: ...ons to continue 6 When Windows has loaded shut down the computer reconnect all peripheral devices and then turn the computer back on System Recovery using recovery media select models only Use the steps provided in this section if you created recovery media using Creating recovery media using HP Recovery Manager select models only on page 123 If you used HP Recovery Disc Creator to create a Window...

Page 136: ...ystem DVD to reboot the computer and repair the operating system To order a Windows 7 operating system DVD contact support Go to http www hp com support select your country or region and follow the on screen instructions CAUTION Using a Windows 7 operating system DVD completely erases the hard drive contents and reformats the hard drive All files that you have created and any software that you hav...

Page 137: ...ndows 7 operating system DVD and then insert the Driver Recovery DVD 2 Follow the on screen instructions to install the Hardware Enabling Drivers first and then install Recommended Applications Backing up restoring and recovering in Windows 7 129 ...

Page 138: ...attery can be extended by plugging the computer into a live AC wall socket The lithium battery is only used when the computer is NOT connected to AC power HP encourages customers to recycle used electronic hardware HP original print cartridges and rechargeable batteries For more information about recycling programs go to http www hp com recycle 1 Remove disengage any security devices that prohibit...

Page 139: ...e one edge of the battery When the battery pops up lift it out 1 b To insert the new battery slide one edge of the replacement battery under the holder s lip with the positive side up Push the other edge down until the clamp snaps over the other edge of the battery 2 Type 3 a Pull back on the clip 1 that is holding the battery in place and remove the battery 2 b Insert the new battery and position...

Page 140: ... Replace the access panel 9 Plug in the computer and turn on power to the computer 10 Reset the date and time your passwords and any special system setups using Computer Setup 11 Lock any security devices that were disengaged when the access panel was removed 132 Appendix A Battery replacement ...

Page 141: ...system ROM from the HP website 2 Follow the instructions to flash the BIOS that are found on the website Flashing the BIOS will reset it back to factory settings 3 Turn on the system and while system is powering on and after the HP splash screen press the F10 key to enter BIOS setup screen 4 Select Security System Security from the main menu If the Embedded Security Device Support option is set to...

Page 142: ...and turn the computer on The passwords are now cleared and all other user configurable non volatile memory settings are reset to their factory default values 14 Enter the F10 setup utility 15 Select File Default Setup Restore Factory Settings as Default This will set the default settings back to the factory defaults 16 Select File Apply Defaults and Exit 17 Shut down the computer remove the AC pow...

Page 143: ...ited agency responsible for evaluation in the country where the power cord set will be installed 2 The power cord set must have a minimum current capacity of 10A 7A Japan only and a nominal voltage rating of 125 or 250 volts AC as required by each country s power system 3 The diameter of the wire must be a minimum of 0 75 mm2 or 18AWG and the length of the cord must be between 1 8 m 6 feet and 3 6...

Page 144: ... fittings appliance coupler and wall plug must bear the certification mark of the agency responsible for evaluation in the country where it will be used 2 The flexible cord must be Type SVT or equivalent No 18 AWG 3 conductor The wall plug must be a two pole grounding type with a NEMA 5 15P 15A 125V or NEMA 6 15P 15A 250V configuration 3 Appliance coupler flexible cord and wall plug must bear a T ...

Page 145: ...Humidity noncondensing Operating Nonoperating 38 7 C max wet bulb 10 90 5 95 10 90 5 95 Maximum Altitude unpressurized Operating Nonoperating 10 000 ft 30 000 ft 3048 m 9144 m Power Supply Operating Voltage Range Rated Voltage Range1 Rated Line Frequency Operating Line Frequency 90 264 VAC 100 240 VAC 50 60 Hz 47 63 Hz Standard Efficiency High Efficiency 240W active PFC 240W active PFC 82 85 82 ef...

Page 146: ...ischarge ESD 11 preventing damage 12 error codes 105 112 messages 105 expansion card installation 27 removal 27 F f11 recovery Windows 8 120 f11 recovery Windows 8 1 120 fan duct illustrated 8 removal and replacement 47 fan sink illustrated 8 removal and replacement 55 fan power supply 16 flash drive problems 101 flashing LEDs 112 front bezel illustrated 5 removal and replacement 21 removing blank...

Page 147: ...ork 93 power 78 printer 88 processor 98 software 103 processor removal and replacement 58 processor problems 98 product ID location 4 R rear panel components 3 recovery discs steps for creating Windows 7 124 recovery discs using for restore 128 recovery media creating 124 recovery media creating Windows 7 123 recovery partition Windows 8 120 recovery partition Windows 8 1 120 recovery USB flash dr...

Page 148: ...ting recovery media 123 creating system restore points 123 hard drive recovery 126 Help and Support 122 steps for creating recovery discs 124 steps for creating recovery media 123 steps for creating recovery USB flash drive 124 System Recovery 126 System Recovery using recovery media 127 System Restore 125 Windows 7 operating system discs using for restore 128 Windows 7 operating system DVD creati...

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HP ProDesk 400 G2 Small Form Factor, Maintenance And Service Manual

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